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Markdown & Mermaid Diagrams Visual for Power BI – Update 1.4.0

· One min read
Ilfat Galiev
Ilfat Galiev
Software Engineer

The latest 1.4.0 update of the Markdown & Mermaid Diagrams visual introduces exciting new features and enhancements:

✨ New Features​

📌 Custom Styling with the styles Block​

You can now define custom styles for text elements using the new styles block.

All content within this block is added as a <style> tag in the final HTML render.

Example:

h1 {
    color: red;
}

This will make all <h1> headings appear in red.

🛠 New Handlebars.js Helper Functions​

We've added several new helper functions for the Handlebars.js templating engine, including:

  • Equal (eq)
  • Not Equal (ne)
  • Less Than (lt)
  • Less Than or Equal (lte)
  • Greater Than (gt)
  • Greater Than or Equal (gte)
  • Logical AND (and)
  • Logical OR (or)

📖 Read the full Handlebars.js helpers documentation →

🔍 Improved Debugging: View Source on Render Failure​

If rendering fails, the visual now displays the source configuration of the chart. This helps you quickly identify and fix any issues.

⚡ Increased Diagram Rendering Limit​

The maxEdges configuration parameter has been set to 30,000, allowing the visual to render diagrams with up to 30,000 nodes.

A New Chapter

· One min read
Ilfat Galiev
Ilfat Galiev
Software Engineer

This post summarizes my work on the Charticulator App and Power BI visual for 2024. It includes an overview of the new features and a brief history of the project. The project is live, and my focus moving forward will be on improving the documentation and creating tutorials to showcase how to use the new features. Currently, the documentation is outdated and does not cover the latest updates.